package com.itheima.zuoye.d04;

import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
//        键盘录入字符串，判断字符串是否是对称字符串
        Scanner sc = new Scanner(System.in);
        String str = sc.next();
        StringBuilder sb = new StringBuilder(str);
        StringBuilder sb1 = sb.reverse();
        if (str.equals(sb1.toString())) {
            System.out.println("对称字符串");
        } else {
            System.out.println("不对称字符串");
        }

    }
}
